I-39/90 Expansion Project

Illinois state line to Madison, Dane and Rock counties

Latest News

Weekly Construction Update: March 25-29

Posted: March 22, 2019

All lane restrictions and work operations are weather dependent and subject to change.

Two lanes remain open to traffic on I-39/90 (in each direction) during daytime hours and weekends.

NOTE: Next week Monday through Friday, nightly single lane closures (8 p.m. – 5 a.m.) are planned on I-39/90 northbound and southbound in the following work zones, unless noted otherwise. Minor delays may occur during these lane closures.

I-39/90 expansion at WIS 26/Milton Avenue and US 14/Humes Road interchanges, Janesville
Anticipated construction completion: Fall 2021

  • No ramp closures anticipated next week at the WIS 26 interchange (Exit 171A) and US 14 interchange (Exit 171B).
  • TRAFFIC ALERT: In early April, all I-39/90 traffic to shift onto the southbound side from Kennedy Road, north of the WIS 26 interchange (Exit 171A), to the US 14 interchange (Exit 171B).
    • Two lanes will remain open in each direction, separated by a median barrier wall.
    • Be alert for crossovers, don’t tailgate and drive with caution through this area!
  • RAMP CLOSURE ALERT: The WIS 26/Milton Avenue ramp to I-39/90 northbound closed for four (4) months starting in early April 2019.
    • More information to be provided in next week’s update.
    • Alternate routes will be required, such as the US 14 interchange.
  • Read the I-39/90 construction operations at the WIS 26 and US 14 interchanges.
    • Crews will begin work in the median portion of the temporary ramp for the I-39/90 northbound ramp to US 14
    • Crews will continue placing the centerline barrier wall. The new barrier wall will be used to separate traffic into a bi-directional formation starting in early April.
    • Preparation work will begin for the northbound bi-directional traffic switch, including pavement marking removals and temporary widening.
    • The bi-directional traffic switch will take place the first week in April.
    • Utility crews are working in several locations along the WIS 26 and US 14 corridors to prepare for the upcoming bridge reconstructions.

I-39/90 southbound expansion (south of US 14/Humes Road interchange to Hart Road bridge over I-39/90), Janesville to Beloit
Anticipated construction completion: Spring 2020

  • TRAFFIC ALERT: In early April, all I-39/90 traffic to shift onto the northbound concrete pavement from the WIS 11/Avalon Road interchange (Exit 177) to south of the US 14 interchange (Exit 171B).
    • Two lanes will remain open in each direction, separated by a median barrier wall.
    • Be alert for crossovers, don’t tailgate and drive with caution through this area!
  • Read the I-39/90 construction activities between Beloit and Janesville.
    • The remaining construction on I-39/90 northbound is ongoing.
    • Crews will continue to remove pavement south of County O.
    • Concrete paving to begin Monday (March 25) and continue throughout the week.
    • Preparation work underway for the median for temporary pavement near the WIS 11/Racine Street ramps.
    • Grading and preparation work for the northbound concrete pavement between County O and US 14.
    • Nighttime grading operations to resume next week to complete remaining concrete paving work.
    • Traffic switches are scheduled for early and mid-April.

I-39/90 expansion and I-43 reconstruction (Illinois state line to Hart Road; County X/Hart Road to Freeman Parkway), Beloit
Anticipated construction completion: November 2019

  • All I-39/90 traffic shifted onto southbound side, between Cranston Road and the Illinois state line.
    • Two lanes remain open in each direction, separated by a median barrier wall.
    • Access remains open to the Beloit rest area via temporary ramp connections.
    • Be alert for crossovers, don’t tailgate and drive with caution through this area!
  • All I-43 traffic located on southbound side (County X/Hart Road to I-39/90) until mid-August 2019.
    • One lane open in each direction on I-43, separated by a median barrier wall.
    • Be alert for crossovers, don’t tailgate and drive with caution through this area!
  • Colley Road under I-39/90, near Beloit, is CLOSED until summer 2019.
    • Alternate local routes are required.
  • Read the I-39/90 and I-43 construction operations near Beloit.
    • Removal of existing pavement on I-43 northbound from I-39/90 to Hart Road.
    • Removal of existing pavement from I-39/90 northbound from the Illinois state line to Cranston Road overpass.